Electric dry shaver



' June '6, 1939. G, G, GOING ELEGTRIQDRY sHAvER Filed May 6, 1938 2 Sheets-Sheet l .Y INVENTOR GEORGE @.GolN l AT oRNEY l June 6', 1939, f Q G, Goms 2,160,965 I ELECTRIC DRY SHAVER v Filed May 6, 1958 2 shets-sneet 2 Fl G. 5 l 44 uuuuuqlyiuuuuumuuuuuu n 42.

l EDEIQQPEEEEIEEEIEDEEEIDQEDED INVl-INTOR GEORGE G.`GOI G AT TQR N EY 4Patented PATENT? jon-ica 2.160.965 ELECTRIC nur suaviza George G. Going, Stamford, Conn., assignor, by menne assignments, to Remington Band Inc., Buffalo, N. Y., acorporation of Delaware Application May, 6.1933, vserialy No. y206,376

's claims. (ci. ca -43) This invention relates to improvements in the cutting head for razors of the dry shaver type, and particularly to the construction and arrangement of the cutter"bars thereof.

5 In the past, attempts have been made t'o improve the cutting quality of electric dry shavers by reducing the thichless of the outer cutter to insure a close shave. were weakened and became bent and distorted.

thereby causing the razor to cut andl chafe the skin. Another undesirable feature inherent in razorsof this type is the clogging of the blades with hair, thus slowing down the razor and preventing the entrance of hair into the slots bel5 tween cutter bars. It has also been found that the cutter bars of the oiiter cutter extend parallel to the line of travel of the razor, and tend to brush or bend the hairs of the beard down against theface, thus preventing them from entering the go slots between thebars to cut.

It is, therefore, the principal object 'of this invention to provide a cutting head in which thecutter members'are so formed that the cutter bars of the' outer cutter are located at an angle g5 to the direction of travel thereby insuring that all of the hairs of the beard are brought into .engagement with the shearing edges duringone travel of the razor over the face. Another object is to provide an inner cutter having blades formed by slots of a sufficient width to prevent the hair from becoming clogged therebetween.

A stili" further object is to provide an outer cutter having two cutting fields one specifically for long hair and the other for short hair or stubble.

Another object is to form a cutting head the innerand outer cutters of which are strong and rigid andprincipally the outer cutter in which the metal of the skin bearing portion has been reduced to a minimum thickness.

A` more clear conception of the construction operation and further, .objectsof the invention may be had from the following specification when 45 read in `conjunction with theaccompanying' In so doing the cutter bars Fig. 6 is a'plan view of the inner cutter ;l and Fig. 7 is a side elevation of Fig. 6.

Like characters of references refer to'llke parts in all the drawings.

'I'he shearing head of the invention comprises 5 an outer cutter 28 and an inner cutter 29 (Fig. 1)

and is adapted for use with a razor having anv electric motor in a shell or casing 20 forming a handle tol which the head is removably secured by a set screw 22. The inner cutter is oscillated l0 herein.

The inner and outer cutters are substantially U or channel-shaped as shown in Fig. 4, and are formed o'f sheet metal. 'I'he top or skin-engaging. surface ci the outer cutter 2li` is formed with raised channel 26 running longitudinally of the 20 cutter in which slots are cut forming cutter bars 21. The slots are located at an angle to thelongitudinal axis of the cutters and will be referred to as diagonal slots hereinafter. The top portion is formed integral with parallel side walls 25 3l which are secured at their ends to a base member 32 in any well known manner s'uch as welding or riveting. The base is in the form of a block provided with a longitudinal slot 34 to accommo- J.

date the actuating arm 2 4, `and apertures 35 3o through which the positioning pins 25 extend..

Slots are cut in the corners of the outer cutterg, forming cutter bars 36 which are perpendicular to the longitudinal axis of the cutter. The metal remaining between the slots forming bars 21 and 35 those forming bars 36 provides .a rib or 'reinforcing member 31 which tends to stillen the entire cutter. In Fig. 3 it will be noted that the diagonal slots are narrower than those forming bars 36. The wider slots at the corners are provided 40 to permit the entrance of long hairs to the inner cutter and both of these portlonscontaining the bars 36 are used for cutting long Vhair only. `A

- groove (Fig. 4) is cut in each of the vertical faces of the outer cutter to provide comb mem- 45 ber to guide long hair into the cutting head.

It will be noted in Fig. 3 that the end of one cutter bar 21 overlies the end of the next adjacent bar. This alocation of parts is used to in- 'sure that each individual hair of the beard will 50 l be combed into the diagonal slots and thus out in one passage of the razor over the face. 'Ihe center portion of the outer cutter is used for shaving only.

The inner cutter is similar in shape to the outer cutter/except that the base $8 is provided with slot 39 adapted to be engaged by the actuating'l arm 24, and indentations Il)` adapted to beengaged by the heads of pins 25.

. Slots are cut in the corners of the-inner cutter forming bars 4I (Fig. 6) which are similar to and correspond to the bars 36 of the outer cutter. 'I'he slots which form the bars .42 in the raised portion of the inner cutter extend at right angles to the longitudinal axis of the cutter and are approximately twice as wide as those forming the bars (I, but the bars are approximately the same width (Fig. 5), as the bars 36l of the outer cutter.

It has beenv found thatthis arrangement of the cutterbars in the inner cutter is the most desirable-as the wide spacing permits easy access of the hair to the blades of the inner cutter and also prevents clogging of the cutter with hair.

It willv be noted in Fig. 5 that the outer cutter has been ground away in the portion containing the cutter bars, thereby forming a thin kouter.

cutting plate having raised portions 44 at the ends thereof. These portions tend to stretch the skin and thus prevent it entering the slots between the cutter bars at the same time raising the hair upright into position to be cut.

While I have described what I consider to be' a highly desirable embodiment.I of myfin'vention. it is obvious that many changes Yin form could be made without departing from the spirit of'my invention, and I, therefore, do not limit myself to the exact form herein shown and described,l nor to anything less than the whole of my invention as hereinbefore set forth, and as hereinafter claimed. y

What I claim ,as new, and desire to secme by Letters Patent, is: l v

1. In a cutting head for a dry shaver, a U- shaped outer cutter having a raised central portion, diagonal slots cut in said raised portion and transverse slots cut in the corners of the remaining portion, said slots forming cutter bars, said transverse bars being adapted'to cut long hair and said diagonal bars being adapted to cut short hair and an inner cutter of similar shape reciprocably mounted within said outer cutter. v

2. In a cutting head for a dry shaver, a U- shaped outer cutter having a raised central portion, slots cut in said central portion to form cutter bars,'slts` cut in the comers of`the unraised portion, the ends of said slots in saidraised portion being independent of and4 in` staggered relaftion to said remaining slots, the metal therebetween forming a reinforcement 'for said cutter and an inner cutter of similar formation reciprocably mounted therein. l

` 3. In acutting head for a dry shaver, an outer cutter, an inner cutter, said cutters being U- shaped with a central raised portion, diagonal and transverse cutter bars formed in said central portion of said outer and inner cutters respectively, transverse cutter bars disposed on each side of said raised portion 'in each cutter and longitudinal webs connecting said transverse bars to vsaid central portion.

GEORGE G. GOING. 

